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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ribeiro-Gomes, F. L. Romano, A. Lee, S. Roffê, E. Peters, N. C. Debrabant, A. Sacks, D. |
| Description | Country affiliation: United States Author Affiliation: Ribeiro-Gomes FL ( Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.); Romano A ( Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.); Lee S ( Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.); Roffê E ( Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.); Peters NC ( Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.); Debrabant A ( OBRR, CBER, U.S. Food and Drug Administration, Silver Spring, MD, USA.); Sacks D ( Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.) |
| Abstract | Neutrophils are the predominant recruited and infected cells during the early stages of Leishmania major infection in the skin, and depletion of neutrophils promotes immunity to infection transmitted by sand fly bite. In order to better understand how the acute neutrophilic response suppresses immunity, we assessed the consequences of the interaction between neutrophils recovered from the skin-inoculation site and bone marrow-derived dendritic cells (DCs) in vitro. The capture of infected, apoptotic neutrophils by the DCs completely inhibited their cross-presentation function that was dependent on engagement of the receptor tyrosine kinase Mer on the DCs. The capture of uninfected neutrophils, or neutrophils infected with Toxoplasma gondii, had only slight immunomodulatory effects. These studies define the clearance of infected, apoptotic neutrophils by DCs and Mer receptor signaling as central to the early immune evasion strategies of L. major, with relevance to other vector-borne pathogens delivered by bite to the skin. |
| File Format | HTM / HTML |
| e-ISSN | 20414889 |
| DOI | 10.1038/cddis.2015.351 |
| Journal | Cell Death and Disease |
| Volume Number | 6 |
| Language | English |
| Publisher | Nature Publishing Group |
| Publisher Date | 2015-12-10 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Dendritic Cells Biological Markers Research Support, N.i.h., Intramural Parasites Leishmania Major Cross-priming Immunology Antigen Presentation Cd8-positive T-lymphocytes Physiology Cell Differentiation Parasitology Signal Transduction Proto-oncogene Proteins Mice, Inbred C57bl Neutrophils Antigen-presenting Cells Mice, Transgenic Metabolism Toxoplasma Discipline Cell Biology Animals Receptor Protein-tyrosine Kinases Skin Apoptosis |
| Content Type | Text |
| Resource Type | Article |
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